We have deployed ArcGIS Enterprise in a Highly Available Environment with the environment details as mentioned below. Portal for ArcGIS version 10.7.1 with 2 Portal Servers, 2 ArcGIS servers joined; having the Server Config files and Portal Content Directories in a NFS (Network File Share) and a Primary and Secondary Relational ArcGIS Datastore. Everything was working fine, but today when I tried to browse the Portal Content directory, it is blank (Screenshot attached). When I checked the logs in Debug mode, I can see the error (screenshot attached).
ArcGIS Enterprise: 10.7.1
OS: RedHat Enterprise Linux 7.6
WebServer: Apache Tomcat 8.5.35
Could anyone give some insights on this please.